8 bestAc Leak Stoppersof September 2025
112M consumers helped this year.
57% off
1

FrostyCool R134a and R12 Replacement A/C Refrigerant Deluxe Recharge Mobile Sealer and Stop Leak Kit
FrostyCool

9.9
2

LEAK SAVER Direct Inject Refrigerant Leak Sealer – Small System AC Refrigerant Leak Sealant for Most HVAC Systems - Automotive Leak Sealer – Up to 1 Tons (Small)
Leak Saver

9.8
3

LEAK SAVER Direct Inject UV Refrigerant Leak Sealer – AC Refrigerant Leak Sealant for Most HVAC Systems - Automotive Leak Sealer – Up to 5 Tons – Added UV Dye for Leak Detection
Leak Saver

9.7
20% off
4

emzone Multi 12A A/C Stop Leak (45856)
Emzone

9.4
5

Ultra Cool 1234yf Refrigerant kit w/Stop Leak
Ultra Cool

9.2
6

Red Angel A/C Stop Leak - 2 Ounce (49496)
BlueDevil Products

8.9
7

DiversiTech 985 Super Seal Flex Inject Ac Leak Stop DIY System
Diversitech

8.6
6% off
8

Interdynamics (RLS-3) R-134a Refrigerant with Leak Sealer and UV Dye - 10.25 oz.
InterDynamics

8.3

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